Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2f73a91f929f9cf…

MALICIOUS

PDF

37.0 KB Created: 2020-11-07 00:36:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: ec1055b76f5525a3a3f683af756cc67c SHA-1: b5c8d04a8feff1a9486e6917baaff92594038838 SHA-256: d2f73a91f929f9cffeaecbe74332e38dd4e141604a8a27a488eccf3870bb948d
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffking.ru/aws?keyword=pitbulls+for+sale+in+new+mexico In PDF document text
    • https://cdn-cms.f-static.net/uploads/4417213/normal_5f98cf325020c.pdfIn PDF document text
    • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/d8065cd0ebc23d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/30c5cf30-f400-4a1f-9ec3-cb45c3337991/mantis_tiller_parts_amazon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30e66211-83a2-4062-8837-dc6897474907/hedgehog_launch_2_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/787812e0-a680-4895-b46f-0057f2cdc6d7/57098144434.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce1cc8fc-3803-435a-987e-52165de6a438/one_piece_download_english_sub.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/lifetime_florham_park_pool_hours.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f3e2125-7b72-484b-8453-aee90e91d09a/summoner_job_guide_ffxiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ee15baf-8603-44b1-a770-8378545f41ec/57085770058.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5002 5328 bytes
SHA-256: b4a46c769ccc7a32e7ead46ead5b9bca8a3cdb117d93bd847f305321b4da6e72
font_01_sfnt_off00006221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6221 11076 bytes
SHA-256: c08d427bc32e03f585dd63c31177d50ddc7b44bf03e8a675a90f7715e49e2d83